A Review of Mineral Admixtures Used in the Manufacturing of A Concrete Mix

Abstract

Global demand for concrete is degrading natural resources at an alarming rate. Self-compacting concrete (SCC) is an unique approach since it utilizes minimal aggregates; yet, SCC has the disadvantage of requiring a high cement concentration. when compared to traditional concrete in light of the fact that cement production accounts for 7% of CO2 emissions, The use of a high cement concentration in SCC manufacture is a cause for worry. Though SCC's high powder composition may be considered a limitation, However, it does allow for the substitution of supplemental cementitious materials for the cement portion. In the manufacturing of concrete mix, it is very important to know the optimum dosages of supplementary cementitious material (SCM) or mineral admixtures. Different materials show different properties in a mix. This paper reviews the three different materials Wheat Straw Ash, Marble powder, and GGBS being used as SCM’s, their optimum dosage and their effects on concrete mix. Main key conclusions of this study are that WSA shows the high pozzolanic behaviour and this agricultural waste can be used as SCM. MP and GGBS has produced the greatest outcomes of all mineral admixtures, demonstrating good strength and workability when applied at the recommended dosage. This research will aid in determining what type of mineral admixtures should be utilised and what dosage range should be employed to achieve the greatest effects.